.container{text-align:left;margin:0 auto;width:960px; position:relative;}
.column{float:left;}
.first{margin-left:0; float:left;}
.last{margin-right:0; float:right;}
.span-1{width:960px;}
.span-2{width:960px;}
.span-3{width:960px;}
.span-4{width:960px;}
.span-5{width:480px;}
.span-6{width:240px;}
.span-7{width:230px;}
.span-8{width:240px;}
.span-9{width:210px;}
.span-10{width:267px;}
.span-11{width:960px;}
.span-12{width:190px;}
.span-13{width:250px;}
.span-14{width:100px;}
.span-15{width:208px;}
.span-16{width:240px;}
.span-17{width:720px;}
.span-18{width:920px;}
.span-19{width:200px;}
.span-20{width:900px;}
.span-21{width:310px;}
.span-22{width:37px;}
.span-23{width:553px;}
.span-24{width:450px;}

.clear{clear:both;}